C177 Here comes the cute one again

She estimated that the sum of the three digits on the vertical, horizontal, and oblique lines would be equal to 15. This was considered as having passed!

"Sir Leng, do you know how?" Qin Zheng asked directly.

Lou Zigui chuckled. "I don't want to admit it, but I do."

This time, she did not want to waste time, she directly spoke to Yi Feng and Yi Feng nodded after hearing it